Front-feed mechanism



Jn- 2, 1951 w. A. ANDERSON 2,536,525

FRONT-FEED MECHANISM Original Filed June 27, 1946 8 Sheets-Sheet 1 Jam 2 1951 w. A. ANDERSON y 2,536,525

FRONT-FEED MECHANISM Original Filed June 27, 1946 8 Sheets-Sheet 2 mi 4fre/z dt WALTER ANDERSON Heiney Jan. 2, 1951 w. A. ANDERSON FRoNTFEED MECHANISM 8 Sheets-Sheet 5 Original Filed June 27, 1946 ya ven tat wA/.rm A. ANDERSON OzP,

Jan. 2, 1951 w. A. ANDERSON FRONT-FEED MECHANISM 8 Sheets-Sheet 4 Original Filed June 27, 1946 .9m/en at WALTER A. ANDE/SN Jan. 2, 1951 w. A. ANDERSON FRONT-FEED MECHANISM 8 Sheets-Sheet 5 Original Filed June 27, 1946 Jan. 2, 1951 w. A. ANDERSON FRONT-FEED MECHANISM 8 Sheets-Sheet G1 Original Filed June 27, 1946 W. A. ANDERSON FRONT Jan. 2, 1951 -FEED MECHANISM 8 Sheets-Sheet '7 Original Filed June 27, 1946 Jan. 2, 1951 w. A. ANDERSON 2,536,525

FRONT-FEED MECHANISM original Filed June 27, 1946 y'a sheets-sheet -s Patented Jan. 2, 1951 2,536,525 FRONT-Flinn MECHANISM Walter A. Anderson, Bridgeport, Conn., assigner` to Underwood Corporation, New York, N. Y., a corporation of Delaware original application Juiie 27 19216, serial No.

UNITED STATES PATENT OFFICE 679,722. Divided and this'app'lication Deceniber 28, 1946, Serial'No. 718,913

matter pertaining to partial opening of a froiit' feed device.

It is an object or the present invention to provide improved and efficient facilities for irontfeeding worlnsheets to business machines, and particularly also in efficient cooperation with de# vices for rear-feeding work-sheets.

lt is another object oi the instant invention to provide an eilicient irontieed mechanism embodying a non-eievatable platen, and yet facilitating front-feeding of work-sheets with extreme dispatch for ease.

It is furthermore an object of the invention to produce iront and/ or rear-feeding facilities which are suited for advantageous handling and prov duction oi` records that satisfy numerous differ# ent business requirements or systems.

A further object of the invention is to contrive means for efficiently poweruconditoning a front-feed device for reception of one or more' work-sheets.

Especially, it is' also an object to accomplish the purposes of a last-named object through a frame-supported power source, in any desired position of a paper-supporting carr'age and under positional control of the latter in a manner that makes for economy, iexibility of application and eliciency all around.

Another feature of the invention is to devise reliably operative means whereby to eilect closure of the front-feed facilities and clamping of front-fed work-sheets with eiciency under supplemental control of the paper-supporting carriage and an operable part, the latter of whch may be in the form of machine cycling or other key.

An object ancillary to the several preceding` 5'6 claims. (ci. 19t- 128) feeding device unobstructive` to typing instrumentalities in response to the institution oi all such machine cycles at the outset of which the front-feeding device may have been in obstruct'- ing position.

It is also contrived to provide'simple means to render a front-ieed table incapable of being drawn forwardly into conflicting relations with the typing instrumentalitles by application of manual force, directly on said table.

1 T n addition to the above specically noted objects, the invention has many other objects in view which are in part obvious and in part `pointed out specifically as the description of the preferred embodiment of the invention proceeds.

The invention has been worked out and is illustrated and described as embodied in the well-known Class D Sundstrand accounting niachine, the main conventional features of which are disclosed in the U. S. patents to Sundstrand, Nos.` 2,194,27iY and 2,209,240 dated respectively, March 19, 1940, and July 23, 1940. Reference to thisrnachine and these patents may be .had for clarlcation of features which are not directly partof the present invention.

In the accompanying drawings:

Figure 1 is a perspective view of a Sundstrand accounting machine embodying the front-feeding device in normal pos tion.

Figure 2 shows in iront elevation certain structural details of a paper-feeding and guiding mechanism constituting part of the front iced device'. Y

Figure 3 shows the mechanism of Figure 2 in top elevation.

Figure 4 is a rigl'itfhand sectional side view of the new paper supporting carriage, the new front-feeding dev'ce being shown in the normal position asin Figure l. i

Figure 5 pictures a control earn propel', for fully opening the iront-feed device, the cam being Viewed from the right front side thereof.

Figure 6 is a rightfhand side elevation of the new front-feed carriage with all parts in normal position. A

Figure 7 depicts in frontal aspect, diagrammatically, a short frontJfeed table in association with an automatic iront-feed closure-controlling feature set up to cause closure thereof Whenever the machine is cycled with the types positioned in front of the sho-rt table.

Figure 8 is a front perspective View of the new carriage withthe rght side turned to view,

showing the front-feeding device in front-feed`V escasas 3 condition, and showing top feed-rolls for a record sheet cast oi the platen.

Figure 9 is a fragmentary perspective view of a conventional tabulatng control mechanism for the carriage, including also an incapacitating or normalizer key control therefor.

Y Figure 10 is a fragmentary, right-hand side elevation showingrthe front-feed device moved to and latched in front-feed position.

Figure 11 shows a number of controlling and operating parts oi the front-feeding device, which are carried on the right carriage end, disassembled and spread apart.

Figure 12 is a fragmentary rear perspective view, depicting a carriage control'fcr causing opening of the front-feed device, on a supporting bar. i

Figure 13 is a rear perspective of certain parts of an automatic power opening mechanism for the front-feed device, in disassembled relation.

Figure 14 shows in side elevation a portion of a Y machine cycling mechanism, and portions of devices power operable thereby, for opening and closing Ythe front-feed device, the parts being shown in normal inactive position.

Figure 15 illustrates a portion of the power operating device of Figure 14 in an idly operated state.

Figure 16 shows a portion of the actuating mechanism for opening the throat, the mechanism having been conditioned under carriage control for effective operation at the next machine cycle.

Figure 17 is a side view similar to Figure 16, but illustrates the actuating mechanism for opening the throat as having been power-moved effectively to operated position.

Figure 18 pictures the actuating mechanism for opening the front-feed device, in the process of being reconditioned for another effective operation incidental to the next cycling operation.

Figure 19 is a front perspective view, looking down at an angle from the right of the machine, and showing a controlling mechanism providing for restoration of the front-feed device to closed position under carriage control by the machine cycling mechanism.

Figure 20 is an enlarged detail view of a control clip shown also in Figure 19.

Finally, Figure 21 is a plan view illustrating certain parts of the invention in association with the machine cycling mechanism.

For convenience of reference and study of the invention, the description is divided into the following headings:

l. Old Sundstrand accounting machine features 2. Paper supporting carriage and tabulating control therefor Record and statement sheet feeding-general Record sheet holding and feeding devices Front-feed table and throat Manual front-feed conditioning Manual restoration of front-feed device Locking and timing devices for front-feed device 9. Automatic front-feed conditioning 10. Automatic restoration of front-feed device 11. Normalizer key, and heading balances 12. Miscellaneous and conclusion 1. Old Sandstrand `accounting machine features Referring now more particularly to Figure 1, the machine comprises a stationary machine sec- Vtion generally designated by the numeral I. and

a paper supporting carriage 2 movable transversely on said stationary section. A keyboard 3 embodied in the stationary section includes the usual amount indexing keys 4, a cycling key or bar 5, and many other controls, the function and pur-V poses of which are well known. The carriage 2 is provided with the customary platen roller 'I which serves to support work-sheets for receiving impressions from amount-printing and other types 3 carried on a series of laterally adjacent typebars i0. The said type-bars IG are supported in the stationary section i of the machine in a conventional manner, for differential vertical sliding movements from retired positions below a typing line indicated by the reference numeral I3, see Figure Li. The diierential sliding movements place the said type-bars ID in various raised positions, presenting desired types in front of said typing line i3 and for printing actuation rearwardly against the platen by conventional hammers, not shown. Registers of usual design, not shown, are associated with the type-bars Il! for operation thereby. The extent of rise of the Atype-bars is predeterminable by ngering the amount keys 4, and the cycling mechanism of the machine provides for the rise and restoration of the type bars is respectively during a first and second half cycle, the cycles, after fingering the amount keys li, being usually instituted by depression of the cycle key 5. At times the typebars are caused to rise to appropriate positions representing a total in a register. Such operations are instituted either under control of the carriage or a total key.

The machine is cycled under the power of a Y motor, not shown, which by means of a worm element 2l.

t3, see Figure 21, drives a worm wheel'ilz continuously at reduced speed. The worm Wheel 82 is rotatively mounted on a shaft and is integral with a toothed clutch element 96. Slidabiy splined on the shaft S5 for engagement with the clutch element 95 is a companion clutch A clutch shifter S3 under constant tension of a spring 99 tends to move the clutch element di into engagement with the other clutch element i. However, as seen in Figure 2l, the clutch element 9i is normally held out of engagement with the clutch element 96 by a cycle trip dog itil, having a cam-face ia to cam the clutch element 91 to open-clutch position, and having also a shoulder ib to hold this clutch element 97 against rotation. Said dog l Eli is moved or tripped free of the clutch element 97 in response to each depression of the cycle key 5 and also some other keys, through conventional means shown in said U. S. Sundstrand Patent 2,194,270, and moves again into position before the shaft t5 has received a complete revolution, thus to restrict turning of the shaft 95 to one single revolution for each cycle trip. The shaft carries rigidly thereon a disk iil which has a crank pin |92 to reciprocate a pitman |03, which through means well known controls the typebars lil to rise and descend respectively during the first and the second half revolution of the disk i535. The cycle trip dog liiil is also operable under control of the carriage, as shown in Fig-V ure 4, by tappets It@ that are on usual function control dogs IDT which are adjustably carried on a supporting plate w3, on the carriage, and which mechanism with related parts is fully described in Vsaid .Patent No. 2,194,270.

'52. Paper supporting carriage and mummy coiitrol therefor `The paper supporting carriage 2, see Figures l; 4, 6 and 8, comprises two spaced side walls il i between which the platen 'i is accommodated, the platen being -fast on a platen `I I2 which is rotatably supported in the opposite side walls III for paper feeding control. The side walls I-I-I of the carriage are rigidly interconnected by rail bars M55 and Ile which lie very low and have carriage guideways I l5 facing towards each other. Between the ways of said rail bars iid, I Ir there is a track structure tit surmonnting the frame I of the machine, said track structure affording opposite track-ways Iii contiguous to the'guideways i I5 and anti-friction elements I iii being interposed between the guide-ways i i5 and the track-ways II'l. A spring motor, not shown, constantly tends to advance the carriage leftwardly. YSide covers lila conceal mechanism supported on the carriage walls iii.

Referring `now to Figures 4 and 9, a vertically swingable escapement element l in cooperation with the frontend of differently positioned function control dogs ld? on the carriage7 norinally holds `the carriage in one of a number of different tabulating or columnar positions. Whenever the carriage is at rest, the front end @fone of the control dogg is abutting the right end of the escapement element the latter'of 'which normally is resiliently held raised against a stop I29, by a spring Ordinarily when the machine cycles, it is desired that the carriage thereafter execute a tabulating movement vfromone column to the next. To this end a lever I2!! is reversely actuated respectively at the beginning and the end of each cycle to vi brate a slide H vertically and to actuate and return a lever 25. The lever occupies normally the position as seen in Figure 9, but when ac tuated, a bifurcated end Vil thereof acts upon a pin I3 I of another lever I 23 to temporarily project a holding dog Iil into the path of the active columnar control element ITI. Concomitantly with the projection of the holding dog IM, the swingable element l2@ is withdrawn below the active function control dog lil'i, permitting the carriage to advance slightly until arrested `by the projected holding dog |30, the element Hit being then under the dog It?. Said element I'Qil receives its downward movement at the actuation of the lever I 2t through the mediumof the pin I3! on the lever 23. Upon return of the lever IZ'v'i to normal position, namel;7 at lthe end of each machine cycle, the said dog u|139 iswithdrawn so that the carriage can then tabulate. Resultingly also, the element l2@ restores to normal position and will intercept the carriage in the next columnar position as defined by the neXt control dog la? to the right of the one which has just escaped. For full particulars 'of this tabulating mechanism see said Patent No. 2 194,270. At appropriate times, by means not shown, the carriage is power-returned tocom'e to rest at a desired columnar position, ready to execute renewed tabulating steps.

3. Record and statement sheet feeding-general Accountingmachines are required to hold a lminimum `of one journal or record sheet, and a minimum of one ledger or statement sheet. In the "drawings said record sheets are designated by th'e reference character R, and the statement `sheets-by vfthe-reference character S. The record abseits/'25 sheets are rear-'feu and receiveaearbgincrir of "entriesmade upon successively -ro'ritffedfstate-l mentsheets, the latter ofi-which arefuesiredlte be frontefed ybecause they require very frequent handling.

'4. Record sheet holding und feeding-devices 'Feede'rolls i3d, see Figure il, bear 'normally 'upon the rear-side of the'platen '"l, below-thelevel of the platen `shaft `i-lr, and other feed-m1151535 bear normally upon 4the top-side vof the platen, all to hold airecord sheet R in typing positio'nj'on the platen. Above the reed-rolls itt, 'extending between the carriage ends III and linclined rearwardly, there is a sheet Vsupporting table4136` rigidly fastened to the carriage endsfIH.V 'The record sheets R may be 'rear-fed totheplaten, downwardly in front of said table |36, vanl'dare rolled between said feed-rolls 'i 34 and the platen,-

forwardly and upwardly underneath'the top'feedrollslIBE. l

The top feed-rolls are supportedcnis'lidng members I4 that `are adjustably movable :along aninverted T-s'haped bar Mi andhave laterally spacedarms Ill-2. The bar "illi extendsrthe"full length between the carriage'ends 'IfI-I and has rounde'nds |43 by means of 'which it is'pivot'ally carried on the carriage ends. `hachslidingfnrem ber carries one feed rolllt bym-eans'ofresiliently mounted leverextensions illllcarriedon-said spaced arms I-fi2. The feed-rolls ll-35 rare' mov'- able to and from the `platen undercontro'lof a nger piece Hi8 on a lever '|58 having `a pin-andslotconnection with an arm "ISI 4fast onfthe left end of the bar IlII. A strong spring I52,"attaclfietl to the arm I5I, serves to press the feed-rollsl' in feedingcontact upon the platen. The "finger piece |48 in being moved rearwardly causes fthe spring `|52 to swing over center and'swing and hold the feed rolls |35 away'from the platen,as shown iniFigure 8.

The bottom feed-rolls I`34, ofwhi'ch there are a series alongside of each other extending along the p.aten, are each rotatively supported-byei pair of levers |56, upon a commonipivot rod -I"5I, the latter of which is carriedfon 'a generally iZ shaped supporting web |58 on the carriage. Springs '1F60 urge the feed-rolls I13li towardsthe platen. A flat-faced cam shaft I6 I when turned, acts upon upreaching `arms of the levers |56, to displace them forwardly and cast off the "feedrolls I`3II a small distance away from the platen. Said-shaft-IBI is rotatable to throw off the feedrolls I34 'by a rearward displacement of afinger piece T62, 4similar to 'the `finger piece `Hi8, -see Figuresl and 8, by means Vnot shown. Thefeedroll supporting-levers `Ii have tapered tongues ITM-reaching forwardly of the feed-rollsvl34, to guide rear-fed sheets such as record sheets R, in a curved path towards the'frontoflthe machine. The rear-fedsheets as they-emergeat the front of the platen aredirectedrearwardly under/the top feed-rolls |35.

5. Front-feed table and throat The invention provides for efficient and 'convenient front-feeding of work-sheets, such vas said statement sheets S, down the front-side of the platen and thereunder to the rear. Figure 4`-shovvs a statement sheet S in position for typing thereon, paper holding means, in `the 'form of feed-rolls |68, being shown bearing against the front-bottom side of the platen 1 tohold `.such sheet. vAbove the typing line I3, a front-"feed gide-ortable I'I0,prferab1y of transparentnaa terial, bears rearwardly against the statement sheet S, thereby causing the latter to be wrapped in close contact around the front-side of the platen at the typing line |3, suitable for receiving impressions from the types on the bars I8. With the front-feed table |18 in the position described, the type-bars ||l can rise freely to their printing positions. Usually after one line-entry on a statement sheet, such sheet is removed and another is presented, the record sheet R remaniing in the machine and being required to be line spaced. As illustrated in Figure 10, in order to facilitate removal of one statement sheet S, and the introduction of another in its place, the paper holding means or'feed-rolls |68 are cast OIT the platen and the front-feed table |153 is displaced forwardly to occupy a forwardly tilted position.

The transparent front-feed table |10 may in most cases be co-extensive in length with the platen, and, as seen in Figure 4, is secured along its upper margin by screws |12 to a stiff bar |1| of substantially square cross-section. The bar |1| is carried on opposite ends of the carriage by plates |13 which are pivoted to the adjacent side walls I of the carriage by means of pivot studs |14. The latter are located to render the frontfeed table |10 displaceable about an axis that lies parallel to the platen, to the rear thereof, and below the platen axis. This provides that during therestoration of the table |16 its lower edge will glide upwardly over the front-fed paper to wrap itin tight contact with the platen.

Said feed-rolls |68 extend in a row along the platen, see Figure 2, and each is rotatively supported at the opposite ends thereof by arms |15 carried swingably upon a supporting shaft |16. Brackets |18, see Figures 3 and 4, flank each pair of the arms |15 and are fastened behind the shaft |16 to the rail bar ||3 of the carriage as at |19. Forward of the shaft |1$ said brackets are fastened to a carriage-frame-bar |8| which spans the space between the carriage end-walls Said brackets |l8 have the shaft Ele extend therethrough to afford bearing supports for the latter. Springs |11 attached to rearward extensions of the arms |15, and anchored to the adjacent brackets |18 urge said arms |15, and thusV the feed-rolls, constantly towards the platen. The shaft |18 is non-circular in crosssection and carries intermediate each pair of feed-roll carrying arms |15 an element |82. Each of these elements |82 has opposite, apertured ears |83 to iit the shaft and to turn therewith, the spaced ears in conjunction with the brackets |18 serving to locate the feed-roll arms |15 properly spaced along the Shaft |16. Said elements |82 reach under the aforesaid feed-roll arm eXtensions, from which they are normally slightly spaced to allow good feeding contact of the rolls |58. For release of the feed-rolls |68, the shaft |16 is given an anti-clockwise movement asA viewed in Figure 10, so that the elements |82 thereon will engage and move the feed-roll arms to cast off the rolls |68.

The sheets S which are front-fed down befr tween the platen and feed-rolls |68, see Figure 10, take a wide sweep around the underside of the platen, rearwardly well below the tapered tongues |63, see Figure 4, of the rear feed-rolls |34. Such wide sweep is given the sheets by guiding elements |85 situated between the feed` rolls |68, and below which the latter withdraw when released. The said guiding elements |85 are augmented in their function by a paper shelf |86, see Figure 4, which has lonly a slightupward 8 tilt to the rear and which extends the full distance between the opposite carriage ends The wide sweep of sheet introduction which the shown and described structure provides, facilitates introduction of all commonly used weights of paper with extreme ease and without detrir mental buckling tendency; yet the bend given the work-sheets produces just enough friction to .cause them to remain in position upon introduction. Said paper shelf is fastened at the rear to a square bar |81 fast on the carriage, and ends at the front in spaced sections |84 having vertically bent tabs |84la for securement t0 the square bar ili by shouldered screws |88, see Figures 2 and 4. The said guiding elements |85 are situated between the gaps |9| formed between the sections |84 and are laterally intermediate the feed-rolls |58. They, asrseen in Figure 3, are formed at the rear with upwardly and downwardly offset tines i2@ to clip onto the paper shelf |36, and at the front they have each a sharp angular bend, downwardly and rearwardly for securement to the front of the bar 8| by screws 89, see Figure 2.

The feed-rolls |68, when released to Figure 10 position, areslightly below the guiding elements it. In some cases, because the work-sheets S in being front-fed have a tendency to flex downwardly between said guiding elements |85, they tend to get caught or fouled on the front sections ifi of the paper shelf |8, or on the feed-rolls Especially work-sheets of light weight, and such that are notched or punched along the introductory edge, have the above tendencies. Provision is therefore made to assure, in al1 cases, smooth, substantially resistless guidance of front-fed work-sheets S rearwardly underneath the platen and onto the paper shelf |7887. Drawing attention especially to Figures 2 and 3, to this end there is accommodated at a circumferentially reduced, intermediate section |68a of each feedro-ll |68, a deiiector element |92, each such element having a narrow sheet-deiiecting shelf |92 nested closely to the platen when said feed-rolls @e8 are in applied position, but moving an appreciable distance from the platen when the feed-rolls are cast 01T, that is when the carriage is conditioned for front-feeding work-sheets as seen in Figure l0. The deflector shelves |92a move downwardly aV lesser distance than the feed-rolls |58, and will come to lie slightly above these feed-rolls, and will thus guide the paper with some clearance over the rolls. The de-V flector elements |92 comprise eachA a main vertical leaf |93 which at the top has a four-sided cage bent therefrom, in which is accommodated the reduced feed-roll section |S8= A top side of said cage consists of said deector shelf |92a, and another side ||l2b underlies directly the reduced/feed-roll section |6821. Each of the deflector elements ||l2 has a vertical slot in the vertical portion |93 thereof, and the screws |88 which fasten the front-end of the paper-shelf to the bar |8|, are shouldered to provide guides and mount the various deflector elements |82 for vertical sliding movement. To keep said elements |92 in straight position, they have each at the bottom-end thereof, see Figure 2, a lug |33? piloted in a vertical slot |915a provided ina plate |S| overlying one of the bent-down tabs |815aL of the paper-shelf |86, said plates |34 and tabs |84a being firmly clamped to the bar |8| by the shoulders of said screws |88. Preferably the vertical leaf |93 is slightly bowed to enable the screw |88 to keep the element |92 frictionally in the position to which it is moved. In operation, when the feed-rolls |63 are being applied, the reduced sections |68@l thereof Contact the shelf |92a within said cage to lift the deectors up wardly to the position seen in Figure 4. During the release of said feed-rolls |68, the deflector elements |92 will be imparted a downward movelment by engagement of the reduced feed-roll sections with the lower wall |92b of said cage, the final relative positions of the parts being as illustrated in Figure 10, affording smooth guidance to front-fed sheets clear over the rolls |68.

6. Manual front-feed conditioning The front-feed table and the feed-rolls |68 are movable to front-feed position by an operating handle |95, see Figures 1 and 6, carried upon a composite slide structure generally designated by the numeral i96, and consisting of a ilat slide |91 and a stiffening angle member |98 riveted to the former as indicated in Figure 6 at 200. The composite slide |96 is carried upon the right side wall of the carriage by means of three headed screw-studs 20| extending through slots 202 in the slide |91. Accommodated between the slide |91 and the carriage side wall is a link member 203 which at its forward end has a pivotal connection, as at 204, with a stud 205 proiecting from and rigid with the right end-plate |13 of the front-feed table |10, said stud 205 reaching through a clearance aperture 206 in the right carriage end see Figure 6, and in conjunction with said aperture affording limits for opposite movement of the front-feed table and the operating slide. Near the rear end, the link 203 is slotted as at 201 for guidance upon .a shouldered stud 208 having a retainer head. In

the rearward position of the front-feed table,

see Figure 6, a laterally bentoff rear-end 2|0 of the link 203 is directly in front of an operating pin 209 proiecting from the slide 91. Therefore when the operating handle |95 is imparted a forward movement, said link 203 will be displaced forwardly by the pin 299 to swing the front-feed table |10 to front-feed position seen in Figure 10. In order to release the feed-rolls |68 from the platen at the same time that the front-feed table |10 is displaced forwardly, the aforesaid feed-roll releasing shaft |16 extends and has affixed thereto. outside of the right carriage end, as seen in Figure 6, an upright arm 2|| having a forked end 2|2 embracing a pin 2|3 on the slide |91. The composite slide |96 is resiliently retained in its rearward position by means of a spring 2| 4 anchored to the adiacent carriage wall In turn the link 203, and therefore also the connected front-feed table |10 are resiliently urged rearwardly by a spring 2 |55. -'I'o retain the front-feed facilities in front-feed 'condition after movement thereto, there is provided a latch arm 2|6, pivotally supported upon the carriage as at 2|1, and having a bent lug 2| 8 thereon to catch behind a shoulder 2|9 on the slide |91 as such slide approaches its forward limit position. The aforesaid stud aside from giving guiding support to the link 203, gives also guiding support to the rear-end of the latch arm 2|6, the latter being provided with aV guid ing slot 220 cooperative with said stud 208.

1. Manual restoration of front-feed device The front-feed device is restorable to normal condition under control of a carriage supported key 22| constituting a part of a lever 222 pivoted as at 223 to the adjacent carriage wall and having a rearwardly extending arm 229 underlying a lateral tab 225 on the latch arm 2|6, see

VFigure 6. Said lever 222 is given guiding support 4and is limited in its motion by means of a pin and slot connection 226 with the adjacent carriage end. A spring 221 resiliently maintains the key 22| in the normal, Figure 6, position. It will be seen that depression of key 22| will cause the restoration of the front-feed device to normal condition by effecting an upward displacement of the latch .2|6, whereby the slide |96 is given over to the power of the spring 2|4.

V8. Locking and timing devices for front-feed derace Provision is made whereby the front-feed table cannot be moved into conflicting range with the type-bars i 0, by manual force applied directly to the table. This is to prevent injury to said type-bars and/or the table |10, To the above ends, see Figure 6, the operating link 203 for the front-feed table |10 has a shoulder 23| which is normally blocked by an ear 233 on Athe :rearend of a blocking arm 230. The latter is pivotally mounted on one of the studs 29| which guides the composite slide |96. The shoulder 23| s normally slightly to the rear of the ear 233, as in Figure 6, to allow some forward displacement of the front-feed table, but not into the operating range of the type-bars i9. A spring 231i normally holds the blocking arm in potentially effective position with the ear 233 engaging the underside of the link 203. If, however, the slide |96 is moved forwardly by the handle |95, or by power in a manner yet to be described, said blocking arm 239 is cammed out of the way of the shoulder 223i. To this end a lug 235 on the blocking arm 230 is engageable by a protuberance or swell 236 on the slide 91 during the initial forward movement of the latter, to displace the blocking ear 233 clear of the moving path of the shoulder 23|.

In restoring the front-feeding device to normal condition under control of said key 22|, or automatically in a manner yet to be described, it is desired that the feed-rolls |88 be applied in advance of the rearward restoring movement of the front-feed table. This is to assure clamping of the front-fed work-sheet or sheets S in the positions in which they are presented by the operator down the rear-side of the front-feed table, and particrlarly to prevent thefront-feed table |10 from disturbing the paper while the lower edge thereof glides rearwardly and upwardly over the paper. For this purpose, the blocking ear 233 of the arm 230 snaps at the end of the forward displacement of the slide |91 behind a rear shoulder 238, the protuberance 236 on the slide |96 having by this time moved clear of the lug 235 to permit this. See Figure 10. It will now be seen that freeing of the slide |96 for rearward movement, as by depression of the key 22|. 'will first result in a rearward movement' of the slide' |96 under the power of the restoring spring 214, while the operating link 203 connected to the table |10 is temporarily detained by the blocking arm 236 at 238. As the slide |98 approaches its rearmost position, the protuberance 236 cams the blocking arm 236 free of the link shoulder 238 to allow it to bedrawn rearwardly by the spring 2 I5; The restoring movement of the frontfll feeditable thereupon is further 'delayed-and'L impeded by the provision of an air dashpot 240, not lonly'to assure that `the front-feed table |"|ll"will 'move softly and vnoiselessly to normalposition ibut alsoto assurethat it will practically not'move f,

Vuntil after the work-sheet S has been iirmly gripped between the platen and the feed-rolls |68. For soft and controlled action the slide |96 'has'adash-pot 24| associated therewith,` but this 'dash-pot allows Vfaster movement than the `dashpot 25B.

"To assureV always full restorationof thefrontfeed device, an arm 25|) of. a bail-structure at the lrear of the' machine not yet described, carries'a i rollA` 24Bit/herewith 4there is associated a pivoted el'ement4254 havinga short camface"244f for contact with-the roll' 253. .Said element is under tension of a spring'245, andthe face 2441is designed to Lact on theroll onlyas the'slide |95`2approaches its normal rear position seen in Figf.

.ure,6. Y

*9. Automatic'sfionhfeed conditioning "The" front-feeding 'mechanism vis alsolmovable 'to' frontAf/ee'd conditionunder the control ofthe r:

'bail comprising. a bar 245 of generally'right angular 'crosssectionv being at lits .ends rigidly carried on the. lower ends of twosoaced arms 2M, the 'latter havingpivotal supports on the Lopnos'ite carriage ends as at 248. The arm 241 at "the right end'of'thecarriaee is hartof "a' lever 'incloding the. Vaforedescribed"arm, 250, Saidarm "2555s operatively associated with the/rearend oflthe' slide vlilloy'a nin-and-fork connection 25 l. "The same bail-is normally .positioned asshown in "liizaures4,6 and`1'4, vand automatic actuation thereof, for. conditioningthe Vfrontlff'eeding device. rearwardly. is Yetiected throughrearward .actuation of a'roller 253 by the machine cycling mechanism, subject' however to' carriage control of theroller253 into cooperative range withl the ,gf

"bar245. 'Suchicarriage control of the rollervis 'eizer'cisedbv one or more cam 'elements 285 nrovided 'on'the bail bar `255, through the medium .ofra couplingr device generally desiqnated by the reference numeral 252. `lSaid couiclinedevice inlroller 25|. -The lever 283 is nivoted cna/stud s t2M provided woon a bracket 295 attached toi the 'framework of the machine. Theisame stud 284 gives alsopivotalsuonort to anotherlever- 256 rwhich loy-a snringAZQla arranged intermediate :both levers .is resilientlyurged to move untarily with f thev flever l 233 l inA clockwise `Vdirectiony the .leverfi having an `ear "253 `wl'reagai-nst the other-lever'is resilientlv urged by the spring 281e, :From the front-'end of the lever 255, Athere projects laterally a-:guiding stud hfor an actuating link-255, the latter having an elongate `slot 219 Vfor accommodating the stud. VThe aforesaid rol-ler 253.7islmoun-ted inuorightf position upon fani-element 25f1f`that-is carried Ion afpivo't pin 255 projecting.-.laterally`froin=the link 255. `For a .purpose tc beibrought outiate'ntlie element 254 is limited in lits lpivotal lmotionfbya' nin29fan`d af'soring 2e l "having anchcragei'oopositelyon the flink f 255 #andthe element 254 keeps *the latter A.at its frontv endlinked to an'upstandingarm -r259 ofua rocking structure 257. The normalmesition of `the-parts just described is as in Figure i 1,4,.-in whichV the gravity of-parts 25?,v 254, 23|, .l285, "etc.,.assisted by -a spring 4255a locates `the roller 253 below the bar 245'with the front end :of-the 1ever'286 resting on a stopv 286e. The rocking structure=25l comprises additionally two latported Vbracket 253. The roller 255 and the parts leading thereto from the-:rocking structure 251 v'aredisposed substantially at the middle of the 'n1a`chine,A butv operating 'means for the rocking structure isv disposed'rto the left of the system "of type-"bars, substantially in the plane of 'the "crankdisl: yIl of the'cyling mechanism seen'in `FigureZl. VNamelyfthe left arm of the'rocking "'structure25lhas =connected thereto, as at 264, `a'slideA 255`provided nearits front end with a "sltz2`65 giving it sliding guidance upon thema- 'chinefframefin'conjunction with a framesupported stud/'2371. The forward end of the slide '255 carries an upright extension 258 which reachesinto' the orbit of' anv actuating roller'210 on'the crank pin I|J2^of the' cycling mechanism. During'a later part 'of each machine cycle, when vthe type-bars have nearly receded to normalpo-V sition, thecycle actuated roller 21D wipes for- *wardly'and upwardly against a padded iiange 214 on'the extension'258. In doing so, the slide 2|i5'is given a forward ldisplacement resulting in a rearwadmove'ment'of ythe roller 253, withv the 'ie'c't that an operation of the bail bar 245 rear- Ywardlyby the roller72'53 will result'- if the'irear of'thelink" 255,' andthere'fore the roller v253, has `p'reparatorlily:been raisedby' action o'f'a cam ele- Vment285|lon the'rollerzl. v'The Vlinlteiiten'sion 2 5B which reaches into'the' orbit 'of "the 'actuatiri'g -roller Z-iil moves' during all'normal operationso'fthe machine unitarilywith `the slide. `The "slide 255 and associated'parts are yieldingly ure l4,.by a spring 275,' such'normalposition beingafdeterminedrby a'` stopV 1:in"2|'|or1foneA of the bracket'elements 252. For'quiet Vreturn of'the `just fdes'cribed cycle-actuated parts,- the"rocking :structure-257 has connected,theretol a return impedingairdash-pot 29W, see'Fig'ure Y14.

Itisfconceived to latch the'roller '253`inu-the actuating range with the iban-2&5# as'-the-cam element 285'rides onto, or over theroller'23i. "As may @be vvunderstood from: Figure-16,the frontfe'eding Vdevice may thus be conditioned :for Vopening :'#operation `Ias 'or before the Pcarriage reaches a position in'which the cycle mechanism lis to bve-"activated'for opening' the fronteeding device. Namely, the roller 253 has atop rimfS'l Vwhich as Athe rollervr raised, engages and glides upwardly, transversely'over a `beveled 'edge38, to latch 'orcatchover the ha'r- `'Inbeing lifted into operating range with the bar-'255,the Yspring 25| `allows Jmomentary -forward yield *of the roller,v and 'iinally is instrumental `to maintain the roller12 coupled tothe bar, for-subsequently foperati-ngthellatter rearwardly near vthe end of thevmachnecycle as illustrated inFigure 1'7. At thezend offeachmachine lcycle in which said bar 24|5'ffis:V actuated,` and providingv there is l then normally turned--c1ockwiseeintofstopping:Contact LV175 @am element 280 operative on thefroller'l,

` 13 the normal position of the roller 253 and operating parts therefor, depicted in Figure 14, will become re-established.

Figure illustrates the actuating mechanism for the bar 246 operated idly, the roller dei having not been contacted by a cam 239, and the roller 253 consequently having received an idle rearward actuation in a path below the bar 245.

The cam elements 28) are constructed as best seen in Figures 5, l2 and 17, and comprise each, a main body 2s2 of sheet metal, having a vertical wall 293, a wide top flange 2&4, and two spaced bottom flanges 295. To the wall 293 there is riveted a cam-block 2st which has a bottom face 296 sloping downwardly and rearwardly, and has also side faces 2B? beveled toward said bottom face, said vertical wall 293 conforming substantially with said races 295, 29'! at the rear of the cam block 298. The said ilanges 'ted and 2de have studs 30e reaching' towards each other into longitudinal grooves Elli provided oppositely in the top and bottom sides or the bar 2&6. The control element 28E) can be moved along the supporting bar 245 to any desired position and a thumb screw 383 can be tightened to press a spring leaf 3.132 into rm element-holding contact with the bar. rihe bar 245.5 transverse grooves 3M near its opposite ends providing applying and exit clearances for the studs of the elements 28e.

` The requirement in different business systems varies as to when in the course of the preparation or records, iront-fed sheets require removal from the machine, and/or as to when and under what conditions the machine should become conditioned for front-feeding sheets` The present machine is constructed to adapt it with simple adjustments for a virtually unlimited variation of requirements. Where it is desired to open the front-feeding device automatically substantially incident to the return of the carriage, a cam element 23!! may be provided in the last active printing column, so that a machine cycle instituted in this last printing column will automatically open the front-feeding device, giving the operator the opportunity to remove one front-fed sheet and substitute another during the ensuing carriage return. W'here work reduires the opening of the front-feed throat in one or more intermediate positions of the carriage, the cam element 2te may be arranged to act on the roller 253 during advance travel of the carriage to the columnar position or positions in which the throat is desired to be opened incidental to the next cycle, it being understood that such cycle may be instituted automatically or manually.

The machine includes mechanism, not shown, for effecting return of the carriage optionally to any one of several columnar positions. If the nature of the work requires, 'the front-feeding devices may be conditioned automatically by a cam element 230 as a result of only such carriage returns which are beyond a certain columnar position. Where the nature of the work requires the carriage to be returned always to the same position, and where such work calls for throatopening at the end of the return, the coupling Lft els in either direction, for which reason in some machine set-ups the front-feed mechanism will throat in the event a cam-block should be movingV forwardly while approaching a coupling position opposite to the roller 28|.

10. Automatic restoration of front-,feed device It is an important feature of the invention t0 provide for automatic restoration of the frontfeeding device fully independently of the control mechanism which conditions the front-feed ing device for opening operation. In the embodiment of the invention shown, the front-feeding device is restored under the supplemental control of the carriage and the cycle-instituting means, the latter of which may be automatic and manual. It will be recalled that the front-feeding device is detained in open condition by a latch arm 216 on the right carriage end in cooperation with a shoulder 219. Said latch. arm 21d, see especially Figures 6 and 19, has a downwardly reaching branch 312 integral therewith, and constituting a part of a unitary bail-structure including at the left carriage end an arm i115 and including further a bail-bar 314 extending in a direction parallel to the carriage and being substantially co-extensive therewith. The arm dit is pivoted to the left carriage end as at C so that the bail 314 is swingably displace-- able rearwardly. The entire bail structure tends to assume the normal position seen in Figures 6 and 19, under the tension of a spring 216, see Figure 20. Clips 318 are provided in desired positions along the bar to afford projecting faces 322 on the bar and thereby to render the bar operable under positional control of the carriage by an operating pin 321 on a horizontally disposed lever 326, Said lever is pivoted as at 323, see Figure 19, to the framework of the machine and is actuatable by another lever 324 which lies in a vertical plane, is pivoted to the framework as at 325, and is forcibly actuated at the beginning of each machine cycle by a stud 326 on the aforedescribed cycling disk 10|. Said stud 326 wipes against a cam face 327 at the outset of each machine cycle but a rearward displacement of the bail bar 3M and a consequent liberation of the slide |96 for rearward movement by the spring 2M, to effect restoration of the irontfeeding device, will be in evidence only in those carriage positions in which a clip 318 is opposite the lever pin 321. In all other carriage positions the lever 329 will be operated idly, leaving the front-feed device open. The lever 320 is' urged to its normal position by a spring 330 and normal position of both the levers 320 and 324 is established by a stop 3.31. Displacement of the lever 321i is early enough in the cycle so that the front-feed table il!! will get out of the way of the type-bars as the latter rise. A dwell continuation 328 of the cam 321 provides that the slide structure i9@ will have ample time to start its restoring movement. The clips 318 are applied to lie opposite the operating pin 321 in all those carriage positions in which the type-bars would be liable to rise and clash with the :frontfeed table 110. In machines where the :frontanamnesi feed'tableellll needy only beoffshort length xa;

clip=or-fclips3 i8 -needl tcbe providedY only'fo'r the:

rangeeoffsuch short table.

In Figure 7is shown a front-feed table lll)v whichonly extends lfor a. portionY alongr the carriage, and the type-bars l d :are indicated as having risen to printing position at the left of the front-feed table, as for typing on the portion of theindicated reco-rd sheet R which extends leftfeed` table such as shown in said Figure 7 may bezusedifor, example, where the machine is out-` l-tted tc- .perform `automatic multiplication in accordance-:with the U. S. patent to Atwater No. 233083519, of.January 12, 1943. In the machine ofzthisipatent 'a succession of adding cycles occnr @in several columns, automatically under carriageicontrol;'tothe end of effecting multiplication'. Theseveral columns inwhich the multiplicaticnv process is being carried out, are lateral offthefrontefeed table Ill, and the latter vmay be'lmovedand may remain forward in all 'those columnar positions where the multiplication proc` essrisrtakingplace. Clips ill being only provided lcverxt-he range shown, a change of frontfed sheets'can thus be eiected while the multiplication process takes place, it being understood thatizacam 289'may be provided for rendering the'lfront-feed device open in any zone, except in the'fz'one: ofthe front-feed table.

Referring'. to Figure 20,V the clips SIS are of channelelike form, comprising, `a bottom wall 333 and a-:Ytop wall '334,' joined by a front wallzaiording'fsaid-fprojecting face 322. The bottom wall ends-.in a goose-neck spring nger 335 Vfor, engagement in a rear groove 3H of the bar 3M. The clip is applied to the bar by setting the rean edge 'of its wall 33s' into-a front groove 3I'l, andi-then thrusting the raar portion of the clip upwardly.

' To satisfy various requirements, clips of dier-v entilengthsare supplied for attachment, either alone :or in combinations.

the Aforegoing it will be seen that the front-feed 'device can be caused to open auto--y mati'cally, and also can be caused to close automatically, in whatever carriage positions such operation may be desirable in accordancewith the', particularrequirements of each installation. A1- waysvfthe. frontefe'ed device opens during the last partof'theV cycle, and closure always occurs at the-very beginningof the cycle before the-typebars rise;

:11; Normalieer key, cmd .hf-calling; balances.

The machine, see Figure 9; includes a nor- Vmalizerlr'ey 362 andmechanism controlledthereby, lsubstantially as disclosed in said ULS. patent to Sundstrand No. 2,194,270. This normalizer key-l, whendepress'ed, is eiective to incapacitate the mechanism whereby in response to each Inachine` cycle there ensues a talcuating step `of the into'islots384 of the key, oneiof theslotsabeing.T

widenedat thetop to form a key-lockingshoulder 385 Vfor catching underneathV .onegpin A :i830-under-v the tension of a key-restoring'spring 386.-.. The;

key 2.82 is operative on a lever 3B? Which-,by

means, only diagrammatically shown,l butifulgly described in said Sundstrand patent. operates.: upon a transversely disposed lever'388 "to swing the left lever-end rearwardly.v Wheneverthistakes place the rearwardly swinging end of the lever 385i operates on the lever 26 of thecycleoperated tabulating mechanism to swingits-left end rearwardly out of Vrange of the -cyclically- Thus the cycling mechanism is then unable to inducea taloulating The normaliser key is operated vertical slide L25.

motion of the carriage. releasable by giving it a slight rearward thrust. Y It isthe practice in many business establishments to forward the balances of a group of accounts to new sheets from time to timesuccessively, sheet after sheet and without inter,- mediate postings. Since such forwarding balances are always to be entered in the same column, rit is advantageous to have thecarriage localized while doing such work. Obviously thed normaliser key aoredescribed can be utilized to do this conveniently and expeditiously, it being` merely required that a dog lill be set in the: required coumnar position, and' to stationv the: carriage under control of this dog, andthatthe ializer lsey be set to locked position; inasmuch as for such work the introduction of 'the work-sheet requires opening of the front-h feed device, and inasmuch as after'each-posting of theforwarding balance the sheet requires removal, the operator sets a throat opening clip 318 and a throat closing control element Zllrespe tively opposite the pin 321 and the roller 285|;

The machine having been so conditionedY it wilI be evident that upon each successivev cycling` 40 operation instituted by a depression of the'cycle key ii, the front-feed throat will always open near the end of the cycle when the roller'lll on theA cycling disk le! wipes past the spring-leaf-faced lange 2M, and that the throat will always closewhen the stud 255 wipes along the cam face 32'!` at the beginning of the cycle and before the ytypebars rise to printing position.

Referring to Figure 17 it should be noted `that at the end of each cycle the rimmed actuating rofl 253 for the throat opening control bar 2M drops and restores to forward position but thatthe bar Ml is he'd in rearward position under control of the open throat latch Zi, 218, seenl Thereafter when the throat is in Figure 10.

automatically closed at the beginning of thecycle;

the bar 2de restores forwardly and the cam facev 2% on the underside of the cam blockf'ZS.; see Figure 18, will reclutch the rimmed rolleri253 to the bar to subsequently operate itragain to- 50 wardsthe end of the machine cycle.

ln forwarding a balance to each sheet; the

operator merely inserts the sheet down-theopen front-feed throat, indexes the baance amount to be forwarded, operates'the cycle key, and thenremoves Ithe sheet, the front-feed device auto.- matically closing and opening respectively at the beginning and endv of each cycle without the;

least attention by the operator.

12. Miscellaneous and conclusion,

For locating the rear-fed sheets R atl 'theV desired writing line, the bottom-edge ci7 the` desi-red; writing lines by the vaid of` vany known` devices or methods which may 4be suitable for the particularwork to bepdone. Some such devices more line-entries from time totimeunderneath a Aprevious line-entry, such sheet mayberpositioned by matching the last previous line-entry with the lower edge of the front-,feedtable H0.

While the form of mechanisms herein shown and-described is admirably adapted to fulfill the objects stated, it is tobeunderstood that it is not intended tozconne the invention to the forms or` embodiments herein described, for the inventionis susceptible of embodimentin various forms,`

all coming within the scopeof theqclaims` which follow.

What is claimed is:

1. In a business machine having a carriage movable toY different positions on a frame, and having openable andcloseablefrontfeed` device on the carriage; means to opengand close said front-feed device,` comprising two members,

one operable or closing said front-feed device and one operable for opening it, twoothertmembers, one `foreach ofsaid` iirs't two members, associated therewith and movable transversely of the directionoi"l the movementof `the carriage, the two members of each of said associations beu ing relatively oppositely` supported on the frame and on the carriage, and thecarriage-supported members being operable by the frame-supported members, and frame-supported means to operate the framefsupported members.

2L. The machine set forth in claim l, including machine cycling means, said framesupported operating means including parts of the machine cycling means to power-operate that frame-sup-` ii. Ina business machine, the combination with` apr'inting platenand a supporting frame therefor, V'oi `feed-roll means comprising axially spaced` feeding sections normally applied against the front-bottom side oi the platen, sheet deflector means accommodated between at least some `of the said feeding sections and closely to the platen while said feeding sections are applied against the platen, means to move said sheet deflector meansaway from the platen 4so thattthere is a wide open throat therebetweenand the platen, and in association therewith to release said feedrollimeans to an extent so that the roll-sections thereof become withdrawn` below the deilecting` surfaces of the deiiector means, and paper-guiding means fast on the platensupporting frame` andkconstituting a sheebguiding continuation of moved-away dellector means to the rear thereof.

5.` In a `business machine, the combination with a platen and a supporting` frame therefor, of a rst, afsecond and a third feed-roll means normally `bearing against said platen respectivef lyalcng thefront-bottom side, the rearfbottom side, iand the top side, saidfrstfeed-roll*means comprising axially spaced feed-roll sections, a

18 front-feed table, having a lower `edge normally disposed above and slightlyito the rear-of a typing line on the front of the platen, and rising up` i di'dly fromA said edge,` apparatusfto movesaid ills iced-rolluneans away from the Aplaten and` in ,associatioii.. therewith also to displace said iront-feed table forwardly of the platen toa,

forwardly tilted position, means for guiding woik-sheets presented down the rear of the for wardly tilted front-feed table, over the released first feedfrollfmeans, in a wide sweep around. the undersideof'the platen and rearwardly below the said second feed-roll means, said guiding means including, a majorfportion xedly carriedf on said traina-T and 4a seriesoi deiloctor elements normally nested closely to the platen between ati least some orfA the feeding sections of the iirst feed--` roll means, andsaidapparatus including means effective to move also said deflector elements from the platen, and toV such an extent that rontfed' wf'irlr-sheetsV are guided clear over the iirst feedq'oll means'and means to release .said second `and third Ifeed-rollmeans,` said latter two feed-rollrneansbeing provided `for feeding` and heldingj rear-inserted work-sheets around the bottom and front of-the platen.

6.1 `In a business machine having arevolvzable platen, workfsheet holding means normally Vbear-v ing` against the front-bottom side of the platen,- a front-feed paper table having a lower edge normally'dlsposed closelyto the platen, above and; slightly 4tothe rear ofaltyping line on the `frontiof -fthe platen, thereby `to i hold a work--sheet against the typing line`,`said table normally risingfupwardly from the'y said edge, means mounting said work-sheet holding means for release from the platen to `forni an open front-feed throat,`and means mounting said table for pivotal displacement,` "forwardly about y an parallel to the platen and to the rear Vof and below the platen airis,` to aupostion wherein the worksheets can be Aintroduced down the rear of the front-feed table in substantially straight condi tion downwardly and rearwardlypast the frontk side of the platen, into `the openV front-feed throat.

"7.' In a business machine lhaving aframe andj havinga, carriage movable acrosssaid frame to different positions; a releasable paper-holding device on said carriage;power-actuatingmeansl on saidframe, means to transmit a releasing mo` tion from said power-actuating means to said device and comprising, coupling means capable ofV eiective and ineffectiveconditioning, and a bar; and an element, oppositelyon the frame and the. carriage, one capable Vof operation by the other in any positionof` the carriage, and means in` cluding means on said bar :to exercise, by reasonl oflchange's in carriage position, such controlzover. the condition ofvsaid coupling means that actionl of thelmotin transmitting means on saidlpaperholding device is subject to carriage control.

8. Ina businessmachine having Aa frame and having a carriage movable across said frame .toV

including means adjustably positionable 4alongqsaid bar' toegercise by' reason `of changes in car riage position suchfcontrol over the condition ,oti-

19 said coupling meansithatactuation of-said bar by said,power-means;issubjeot to carriage control. Y

9. In a business Imachine having a, frame and having a carriage adapted .toitraverse said frame,

releasable paper-,holding means on said carrffige,VV

a, bar extending parallel-to the traverse of the carriage and being mounted on the latter for actuation transversely of said traverse, means-to release -said paper-holding means as a result o fw the actuation of vsaid bar, a -part on said frame movable into and `out of cooperative association with said bar, and operable when associated, therewith to Vactuategsaid-bar, means including control means on said bar, to move said Dart into and out of cooperative association with said bar by reason -of positional changes of the carriage, and power-means to operate said part.

10. In a calculating machine having means for giving it cycles Vofoperation, a frame, a carriage adapted to traverse said frame, front-feed means 20 holding moansdurine. `suola ,-early, phase ,of time cycle,v and means` to cause the releaseA of said paper-holding .moons-forcibly by ooiion of. the; Semo oower-oyolinemoons during a; later rari, 'o f. the4 Cycle..

14,- In. a business machina the Combination with aplaten, of typing meansV operable to rise,

tate introduction of work-sheets into the opened V` front-feed throat, and apparatus to movesaid platen and work-sheetholding` means relatively to open and to close said throat andrespectively in association therewith to displace and to reon said carriage, movable from aprinting to an Y open-,throat position to facilitate work-sheet in-V Y, sertion, printing devices adapted to makeprinting impressionson the work-sheets during machine cycles before a certain pointin the cycle is .-reached, -actuatable means, conditionable to render it capableV of moving said front-feed device to-open-throat position, and including a bar and an element oppositely on the framefand the carriage, one capable of operation` by the other in any positionof the carriagewhenever said actuatable meansis conditioned, means including control-means on said bar to condition said actuatable means under carriageV control, vandy meansautomatically effective after said point inv the cycle has been passed, to powerfactuate said actuatablegme'ans.

11. In a business machine having aY framemember, and having a carriage-member movable toY diierent positions onY the frame-member, printing instrumentalties, cycling means causing said printing instrumentalities to print at a printing phase in the cycle, -a front-feed device movable froma closed-throat to an open-throat position and vice-versa, and means to move said deyioeopposiiely to; the Said positions, comprisstore said front-feed-guiding means in differentlytimed relation, said apparatus comprisingmeans-VV ,only after the Vfront-feed throat has beguntor ina-.means adapted; io :respond .to ihe- Cycling Q means-ahead of the latter Vreaching printing hasatomove. said front-,feedfdevioofrom oponeV ,ftrnroat to Closed-throat position, andmeans `oon-` AAtrolledg-by reason of-.positionalchangesofthe car- *riageemember on the frame-member toY render said responsive ,means either responsive or uriresponsive` to said cycling means.

yvices, oppositely onrsaid. members, to predetermineforeach of said means anyposition of the carriage-member in which eithermeans maybe rendered active.

open, and comprisingtalso means to'cause-the relative throat-closing movement vof the platen and work-sheet holding-means to be concludedaheadl of the restoringmovement of the frontfeed guiding means.

l5. The, combination in a business machine having-machinecycling means, Aand typing means Y operable by the cyclingmeans before a late phase: of. the cycle, of a, front-feed table mounted for displacement from an out-of-way position with, respect tc said typing means to a front-feed-positioninwhich it is in oonficting range with'the typing means, and control Vmechanism forv said table, including, means adaptedto respond to the cycling means during said late cycle-phase to displace said front-feed table to said front-feed Vpo normallybearingagainst the undersidefofthe platen and having each a circumferentially re-V duced. intermediate section, fore-andfaftextending sheet deflectorelernents Aindividual'to said feed-rolls.

13.*In a business machinev havingjgioiwer-cycl-Vv Y ing means forcausing the machine-,torexecute certain functions, and having a frame, anda carriageadapted to traverse said frame; paperholding means-on the carriage, and means tore,-

lease,v and to restoreY saidjpaperholdingvmeans,

comprising-means forciblyA operableby action of theipowerJ-cycling i meansv duringY an Vearly phase: of the cycle to. cause restorationof thetpapsr:

rolls and normally nestedA closely to the platenY in the clearances'provided bythe reduced feedroll sections, means supportingl said feed-rollsY for'individualrelease from the platen,V meansto.

release at least some Vcr-the feed-rollslcollectively..

to provide as wide front-feed clearancetherebetween andthe platen, andY means to connect op'- eratively each individualfeed-rollwith its associated deflector element, comprising means for each feed-roll inits releasing movement toV ini-- part to Vitsassociafted deflector` element a move-V mentV away from theplaten and of such an extent. that the moved defleetor elements are capable o f guiding a work-sheetvclear over their associated line, the combination '17, In. af business mac with a printing platen andfia supporting/frame therefor, Vof feed-rollv means 'comprisingv axially Vspaced feedingV sectionsnormallyy Vapplied "against the platen, sheet defiector elements' accommodated between at least-some of.r the feeding sectionsV-and positioned eloselyto'the platen while; said feeding sections are applied againstthe platlr on, Der extending ioiieiilmeliY-Qlf i12?, Pole-ieg,

nsaid frame, slidemeanssupportingand guiding said deilector` elementsOnsaid Abarfonmovement from and tothe Aplaten, and meanstocastisaid feed-,roll means from theiplaten and .incidentally thereto tomove also said deectortelements from the platen tbut toa .less degree. Y

18.` In a businesstmachine havinga Vframe and having a ,carriage movable `across saidV frame to` different positions; a releasable paper-,holdingY device on said carriage,power-actuating means on said frame, means to .transmit a releasing motion` fromrsaid: powereactuatingmeansto said device and comprising, coupling means` capable of; effective .i and `ineffective conditioning, `and a .bar and an element, oppositelyon the Lframe and thecarriage, one. capable of `operationbytthe other in anytposition ofthe. carriage,A and means i includingAcam-means adjustably positionable along said.

bar to exercise, by reason .of changesrin carriage position, such control over thecondition of said coupling means .that action of the motiontransf mitting means on` said f, paperl-holdingwdevice is.

subject 15o-,carriage` control..

`19. In abusiness machine havingta-frameandi having `a carriage movable acrosssaidframe to different positions; va releasable paperdiolding device onasaid-carriage, normally idle machine cycling Y meansion said, -frame, cycle-instituting` means, means -actuatable by` said; cycling Jmeans to release said deviceand comprising, coupling means capable of' effective and-ineiiective conditioning, and aibarand-.an Aelement oppositely on the;` frame .andsaid carriage, one. capable Yof operation bythe other in any position of-the car-` riage, andmeans includingmeans on said .bark toV exercise. such control overthe condition cf said coupling. meansl that action l ofl the. cycling means onsaid paper-holding device .duringeach machine cycle is .subject to carriage control.A

-20.V Inra businessmachine having La frame and havinga carriage adapted,` to traverse saidr'frame,`

releasable Apaper-holding.means on the carriage,

aber extending parallel tothe traversent the carriage ,and being .mounted on `thetlatter, for

actuation transversely of said` traverse, means to, release said ,paper-holding Y means through actuationV of 1 said bar., a.` frame-.supported Aoperating part for said bar, normally. operativelyv disas sociated from the A latter, means Ato `associate. operatively Asaid ,part `and said bar` under carriage control, said part, Whenoperatively.associated with said,banbeingbperable.to actuatethe latter, said associating meanscomprising, control` means ,carried` on` and .movable with said bar, andmeans on the frame,` controlled bysaid .control means, by, reason of` positional changes ofthe carriage, t provide foroperative associationof said part yandsaid `bar in a certain position of `the carriage exclusive of other carriagenositions, and poxmir` means 'cooperate said part.

21. In abusiness machinehavingaframe and` havingA a carriage movable acrosssaidgframe to.

different positions, a releasable paper-holding dei/.ica 0n Said carriage, `pon/,erfac'watir-1g.r means on said-frame, means to` transmit a releasing mo-` Vtion fromsaid lpower*act 11atingt means to said;

dsvicacsaid, transmittingmeansenludina a bar andl an. element @prestaron the frame and the carriage, ,one Capable of` onerationvbr the ,other` inany'position ofthe-carriage, and normally open couplingmeans movable toclosed position, means y including ammhson, Said, bar i0 move `,Said ailplaemeanS-t0-a closed position by `,fantias@\ movement through a certain zone, anndmeans iol-.1,.reiaiaiseiimarlies,.raeanaiaslessa posities' pending .actuation of said motion tran.'smittix'igt means .bysaid power-actuating means,` and independently of whether thecarriagetpasses outi-of` said zone.

22. In a business machine having a frame and having a lcarriage movable across saidirametoA .different positions, a releasable paper-holding device on said carriage, power-actuating means,-

onthe frame, means to transmit a releasing motion from said power-:actuating means Lto saidY device, said transmitting means including `a barelementand a related element oppositely. onthe frame and the carriage, one movable into cooperative association with the otherin vany position of the carriage for operation of one ele-` ment by the. other, means including-cam-means on said bar-element to move said one .element into cooperative association with the other by` passage ofthe carriage in either directionthrough a certain zone, and means to retain said two elements in l cooperative association until said device has been actuated by .said power-actuating'. means, said `retaining means remaining active independently of the cam-means.

23. In albusiness `machine having a frameand having a carriage adapted to traverse said frame, paper-holding means on saidcarriage, a bar on said carriage extending parallel to the traverse of the carriage and being mounted von the latter for actuation transversely on said `traverse, frame-supported actuating means forsaid bar, and carriage controlled means for causing said bar and actuating means to be moved-relatively into and out of cooperative association,

said. actuating `means including, a roller for 011- erating contact withsaid bar, having a rim for catching onto anv edge of said bar as saidactuating means is moved into cooperativeA associa-A tion with said bar, saidrim, when caught onv tuating range with said bar and biased to-move` out;of such range, means including a cam-unit onlsaid bar, operative as the carriage travels through a certain zone to move said actuator into actuating range with said bar, means cooperative with said bar tolatch said actuator in `said rangepending thelreturn reciprocationt f4 the actuator. said cam-unit after actuation oi saidbar leaving said biased actuator at the beginningoithereturn reciprocation free to move automatically out of actuating range with said bar, and means including a cam-faceA on said cam-unit, capable in a speciiic position of-the carriage, upon restoration of said bar, of mov-1, ing said actuator Ainto actuating range with,A said` l bar.

257,. In a businessmachine having a carriage-` mexnber movable to different positions c-n a, frame-member, releasable paper-holding meansY on one voit Vsaid members, and i means l to ,releasew and fte., restore said; paperfholding inseam.V com,

. functions, a frame, a carriage adapted to be moved. to. different columnar .positions on the frame Vpaper-holdingmeans carriedon the carriage'andassassin;

23- prsing, .in"ariually-y .operable part, and means. to; effect. restoration. oflsaid .paper-holding Ameans. under.y supplemental controliof.. the: carriagef. member and said manually operable part4 26. .Ina business.. machine .having `a carriagememberf. movable to different.. positions .on-Ja.. frame-member, releasable paper-holding means on oneof said members,V and means torelease and:- to .resto-re. saidI paper-holding means, compris.- ing., :amachine cycling key,.and4V means toelect restorationbfsaid paperf-.holding meansunder supplemental control .of the carriage-.member andsaid cycling key.

'27.` Inl a business.. machine having.. a.. carriage. member movableon a frame-member, operable recordingv facilities,A a ,paper-tableon. one of lsaid members,..and means to move saidtable into and vout .of f operation-.obstructing position with. said-recording facilities, comprising anoperable part, and means to move Vsaid table out of obstructing position under supplemental control oi theicarriage-cmember. and said part.

28. In a'business machine.`having a carriagemember movable.on-aiframe-member, a. machine cyclingkey. and `recording facilitiesoperated responsiveto .said` key; a paperetable, and means Vtoinovesaid'table into and o-ut of operation-- obstructingrelation with said-.recording facili.- ties, including means responsive to said key under carriage-member.control, tomove said table out of operation-obstructing relation with the recording facilities.

` 29.1In a-.business machine, anormallyquiescentv powerfcycling means, cycle instituting means,

alrame-member, a carriage-member movableon. said "frame-member, releasable paper-holdingr means on one orsaid members, and. means to release and torestore said paper-holding means,

comprising, a mechanism, constructed andconditionable for actuation by said power-cyclingY means to cause restoration cfrsaid paperf-holdingV means early during a machine cycle, and

means to conditionsaid mechanismunder carriage-member control. Y

30.- InA a business machine having a frame andv having. a carriage adapted to tra-versesaidframe, paper-holding means on said carriage movable from. .aclosedthroat to an open-throatposition and vice-versa, key-means, andmeansto4 cause restoration of .saidf.paperholding.means to-. closed-throat position, under carriage control v.in response to operation `oi said key-meanssaid causingmeansincluding a bar extending parallelv to.4 the Vtraverse of the carriage and control means on said bar.

31;. In a businessmachine having a frameand having .a carriage adapted to traverse said frame,H paper-holding means on said carriagemovable.. from a, closed-throat, to an openethroat position... and viceeversa, ,keymeans and means tocause restoration of said..paperholding. means to closed-Y operable 4tl'iereme from.electi-vev toV ineiective position, and restorable vice-versa, cycle-institut lng means.- and means--tocauserestoration osalda 75 lOl paper-holding means. under supplemental 'controls exercised Vby .thecarriage and the cycle-instituting.;

means in almanner .so .that said 'paper-holdingi.l

means will .berestored in Aresponse to'l operation.

not if-it has beenmovedto-certain other columnar positions, said causing means including, a...bar,. and meansadjustably Apositionable along said bar. for said carriage to exerciseits supplemental;con. trol in vthereq'uired lmanner..`

33. In a. business machine having apovvercycling meansadapted to bel'given cycles .ofeoperaf4 tion for causing .the machine .to Yexecute 'certain. functions, av frame, a carriage adaptedto. be.

moved to. diierentfcolumnar `positions onv the;

frame, paper-holding means carried onthe. care. riage, operable thereon from eiectiveto ineieef'Av tive position, and restorable` vice-versa, .cycle.;

tripping means,` and means `tocause restoration of s said paper-holding means, comprising, a barextending parallel to the carriage and supported, on the latter for operation transversely ofthe. directionY of the carriage movement in order. `to

. cause restoration of the paper-holding means, and

means including control means onv said barto. cause said bar to be operatedinresponse tothe. operation of said cycle-.tripping means if the carriage. hasbeen moved'to a certain columnar. posi-` tion, but not if the carriage has been moved; to. certain other columnar positions. 34:.Y In a businessmachine having a carriagemember movable to different positionson a.frame.

member, releasable paper-holdingv means on 'one of said members, an operable part on .one of ,said members, and meansto release. and torest'oresaid paper-holding means, comprising means under supplemental control 'of saidpartand the carriage-member to cause therestoration of `sa'id-=.

paper-holding means if said part is operated after movement of the carriage-member to. a .certain position, but not if said part is operatedV afterA movement of the .carriage-memberto'. certain.

other positions, said causing meannscomprising.

means oppositely on' .saidrmembers cooperative to. predetermine the positio'nof` the .carriagefmemberl in which operation of said part may cause res-I toration of said holding means.

35. in a business machine, a normally quiescent power-cycling means, cycle institutingfmans, a frame-member, 'a .carriagemember movable on saidl frame-member, releasable paper-holding means onone ofsaid members, and means to re.-I lease and to restore said paper-holding means. comprising, means constructed and conditionable` for actuation by the power-cycling means to cause". release of said paper-holding. means late duringl a. machine. cycle, means constructed and 'conditioniable foractuation 'of the power-cycling. means toY cause restoration of saldi paper-holding means. early during a machine cycle, and means to condition each of said conditionable means individ? ually under carriage-member*control.

36. In abusiness machine having a carriagemember movable to diierent positions on aframef member, paper--holdingmeans on one Ofsaidv members movable VVfromapplied to I released- Yposi'- tion",`a'nd biased from onentowards the otherlpo'silr` tion, means to detain said paper-holdingf fmeansY automatically in said onepositionuupon move merit there@ ensemble eeft andfmeansta release said detaining means under control 37; Ina, business machine having a carriasm. 

